Molded opto-electronic transducer专利检索-换能器材料变压器和转换设备专利检索查询-专利查询网

Molded opto-electronic transducer

阅读：32发布：2024-01-09

专利汇可以提供Molded opto-electronic transducer专利检索，专利查询，专利分析的服务。并且A low cost opto-electronic transducer comprises a molded body of material having a pair of depressions therein. A semiconductor light source is located in one of the depressions and a photoresponsive device is located in the other. The molded body may comprise an opaque material, or, alternatively, the surfaces of the depressions may be coated with opaque material. This prevents direct illumination of the photoresponsive device by light emitted by the semiconductor light source. The depressions, and consequently the semiconductor light source and photoresponsive device contained therein, are closely spaced thereby eliminating any requirement for elaborate lens systems for focusing emitted or received light. The resulting product is a simple and inexpensive optical transducer for detecting objects at close ranges.，下面是Molded opto-electronic transducer专利的具体信息内容。

权利要求

1. An active opto-electronic transducer comprising: a molded body having a pair of depressions extending from a first surface of said body for a portion of the thickness thereof and a plurality of channels extending from a second surface opposite said first surface of said body into each of said depressions therein, said channels each having a cross section dimension substantially smaller than the corresponding cross section dimension of said depressions; a semiconductor light source in a first of said depressions, said semiconductor light source having a pair of electrical leads connected thereto and depending through a pair of said channels; and a photoresponsive device in a second of said depressions, said photoresponsive device having a pair of electrical leads connected thereto and depending through a pair of said channels; at least the portion of said molded body between said depressions being optically opaque and of sufficient height to prevent direct illumination of said photoresponsive device by said semiconductor light source; whereby said semiconductor light source and said photoresponsive device with said connected leads may be easily inserted into said molded body after the pretesting of said semiconductor light source and said photoresponsive device.

2. The transducer of claim 1 wherein said molded body is optically opaque.

3. The transducer of claim 1 wherein one of saId depressions has a coating of optically opaque material on a surface thereof.

4. The transducer of claim 3 wherein each said depression has a coating of optically opaque material on a surface thereof.

5. The transducer of claim 4 wherein said first depression has a coating of optically opaque reflective material on a surface thereof and said second depression has a coating of optically opaque non-reflective material on a surface thereof.

6. The transducer of claim 1 wherein said semiconductor light source and said photoresponsive device are encapsulated in light transmissive material.

7. The transducer of claim 6 wherein said light transmissive material has a curved surface for focusing light.

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